Researchers have developed a Very Big Disc™ that can store up to 200 terabytes of data and may represent a return to optical media for long term storage.
https://www.pcgamer.com/researchers-have-developed-a-very-big-disctm-that-can-store-up-to-200-terabytes-of-data-and-may-represent-a-return-to-optical-media-for-long-term-storage/
Researchers have developed a Very Big Disc™ that can store up to 200 terabytes of data and may represent a return to optical media for long term storage

You can't keep a good disk down, it seems.

PC Gamer
@Thorsted @Em0nM4stodon I hope they don’t glue the layers together like Laserdisc did heh
@Thorsted A 100GB BD-HD costs anywhere from $10 to $25 depending if you get them in a spindle or not. In addition you will need a compatible BD writer for those discs. While I'd like to believe this will be a viable format, it's taken quite a while for even the standard 25GB BD-Rs to come down to reasonable prices.
@Thorsted Instead of losing 4.7 gigabytes when a disk goes bad you'll now lose 200 TB.
@Thorsted
"Very Big Disc"TM is quite hilarious. But i feel that they missed the chance to call it BFD. Which would have been even funnier. Also: return of the laserdisc! Also: summarize as "a tiny scratch for man but a big scratch for mankind!"
@mickylindlar @Thorsted yeah, that scratch here is where the internet archive was...